Fastening buckle



FIG. 1 is a perspective view of a fastening buckle showing my new design;

FIG. 2 is a front view of the fastening buckle of the present invention;

FIG. 3 is a rear view of the fastening buckle of the present invention;

FIG. 4 is a side elevation view of the fastening buckle of the present invention;

FIG. 5 is a top view of the fastening buckle of the present invention; and,

FIG. 6 is a bottom view of the fastening buckle of the present invention. 

The ornamental design for a fastening buckle, as shown and described. 